Internal-combustion engine



T. D. WISHART. NTERNAL COMBUSTION ENGINE. APPLfcATloN FILED SEPT. 11. 1920.

g. PatentedAug. 11,1922.,

THOMAS :DICK WSEART, OF HEATON CHAPEL, NEAR STOCKPORT, ENGLAND,

.ASSIGNOR ONEHALF TU CROSSLEY MOTORS LIMITED, OF GORTON, MAN- CHESTER, ENGLAND.

INTERNAL-COMBUSTION ENGIITE.

Application filed September 11, 1920.

To all e r zofm '1' t may] Conner/n,

Be it known that l. TI-ioMAs DroK'WIstI- am, a subject or" the King ot Great Britain, and residing' at 7 Victoria Grove7 Heaton Chanel. near Stoekportn in the county of La'lmaster, England, have invented certain new and useful li'njnovements in Internal- (lon'ibnstion Engines, ot which the following; is a specification.

My invention relates to internal Combustionengines and particularly to improve ments in the eonstri'lotion of Cylinders having' detachable heads.

A common detest in sneh cylinders as at present wmis'trueted with Water passages in tbe usual topper and asbestos joint between the bead and the body ot' the Cylinder is that water leaks from the water jacket into the Cylinder and ultiinately Finds its Way into the einnkease. The objectol my' invention is to olwiate and overcome this detect and I attain my object by the improved fonstruetion illustrated in the ae:'oinpanying sheet of drawings in which Fig'. l4 is a plan of' the Cylinder with the detaebable bead removed to show the imjnfoved. joint and Fig'. 2 is an enlarged secF tion through one ot the cylinder barrels, and the n:ater'eonneetion tor the j aelet.

ln my invention as illustrated in these views i employ the usual method of fixing; the detachable head D to the cylinders E by means ot studs or bolts (not shown).

Speeeatien of Letters atent.

Yatented Aug'. L i922.

serial No. 409,541.

make the joint between these two parts by means of the usual 'type of copper and asbestos joint A, but having` no Water passages tllrough this joint as in the usual construe` tion, The Water passages between the cylinder and the head are Combined in. each Casting? but are eonnected together by an en tirely separate and independent joint B trein the copper and asbestos joint A.

There is a Clear air space C between the copper and asbestos joint A and the Water connection joint B, thns allowing any Water which may leak from the Water joint to How outside the cylinders and not into either the Y baz-rel ot the cylinder or the valve ohanibers.

What l" ola-iin as my invention and desire to seuure by Letters Patent of the United States is In an internal combustion engine, a oy1in der, a. .fletaehable bead secured to said Cylinden a gasket between said cylinder and head, said Cylinder and head castings having openings 'tor the passage of water between the vylinder and head, internally eoned seats For a jointine member at said openings, a Washer having conical projecting surfaces adapted to tit between said seats to seal the Water passage independently ot said gasket, and an annular passage to the air 'for the escape of leakage from the Water joint.

T n Witness `whereof I have hereunto signed iny naine.

THOMAS ICK VISHART. 

